Rotary mold.



No' 652,756. Y Patnted-J'u|y3;y |900? F. DEMIN'G.

ROTARY MULD. (N M d (Application med .uns 1697) o o e.

w|rNEssEs=' y INVENTOR Y l 3%. ,MM

HIS ATORNEY,

UNITED STATES PATENT OFFICE.

FERDINAND DEMING, OF WATERURY, CONNECTICUT, ASSIGNOB, BY MESNEASSIGNMENTS, TO MAMIE B. CLOWES, OF SAME FLACE.'

ROTARY MOLD.

SPECIFICATION forming part of Letters Patent No. 652,756, dated July 3,1900. Application tiled January 8, 1897. Serial No. 618,426. (No model.)

To @ZZ whom, it may concern:

Be it known that I, FERDINAND DEMING, a citizen of the United States,residing at Waterbury, in the county of New Haven and State ofConnecticut, have invented a certain new and useful Improvement inRotary Molds,

of which the following is a specification, reference being had to thedrawings accompanying and forming a part of the same.

This invention relates to improvements in rotary molds designed for theproduction of hollow ingots or castings.

I will describe an apparatus embodying my.V

invention and then point out its novelty in the claims.

In the accompanying drawings I will illustrate a construction embodyingmy invention,

in which- Figure 1 is a side elevation. Fig. 2 is a transverse sectionof the mold, and Fig. 3 is a detail sectional view of 'the mold and itsydriving-motor.

In the several views of the drawings likel gures of reference refer tolike parts.

Referring to the drawings in detail, 1 rep-v resents a hollow molddesigned to be rotated'l at a high rate of speed. As shown in thedrawings, the mold is designed to be rotatedv by a motor 2 and is shownas directly con-y nected to and passing through the armature of saidmotor. The electric motor illustrated is adapted to be operated by athree-phaseV current with a short-circuited armature and requires'neither insulation nor a commutator. As shown in Fig. 3, 2a designatesthe field of the motor, which in the present instance is' 6 representsalever keyed to the shaft ofL the mouth 4', this lever being for thepurpose of tilting upward andbackward the funnelshaped mouth to and fromposition opposite the mold-opening. On each of these levers is a stud7,'which engages with a latch 8 on the standard 3.V The mold 1 isprovided with an inner lining 9 of abestos or like non-conductor ofheat.

The operation of the device is as follows: The mold l is rotated at avery high rate of speed. The vfunnel-shaped mouths 4 are set in positionopposite the ends of the mold, and while saidy mold is rotating moltenmetal is rapidly poured down` the funnel shaped mouths, so as to passinto the molds, the two streams of molten metal meeting in the middle ofthe mold. Owing to the rapid rotation of the rotary mold,the 1n oltenmetal contained therein is caused to assume a tubular formation, causedby the centrifugal force generated by the rotation of the mold and themetal containedtherein. When the metal has sufficiently cooled, rotationis stopped and the funnel-shaped mouths are turned down, so as to reston the ground, and the ingot contained in the mold is left until it hasby cooling contracted sufficiently to be easily extracted. By reason ofthe mold being lined with asbestos or like non-.conductor of heat themetal is preserved in a molten condition until the two streams meet inthe center and make a continuous homogeneous ingot.

It will be understood that I do not limit myself to they specific meansfor moving the funnel-shaped 'mouths to and away from the ends of themolds-nor to the means shown for driving the molds, as the molds mightbe driven by a belt and pulley or gearing.

l. The combination of a rotary mold having an open en d, a pouring-mouthhinged to a support adjacent to said open end, a lever for swinging saidmouth into or out of engagement with the open end of the mold, anddetachable means to lock the pouring-mouth in engagement with the mold,substantially as set forth.

2. The combination of a rotary mold horizontally arranged and open atboth ends, a pouring-mouth at each end of the mold hinged to a fixedsupport, means to move said mouths independently into or out ofengagement with the respective ends of the molds, and detachable meansfor locking said mouths Ain engagement with the mold, Vsubstantially.'asset forth.

In testimony whereof I have signedniy name to this specification inthepresenpepff two subscribing witnesses.

FERDINAND DEMING.

Witnesses V. M. SHAW, W. B. MAYNARD.

IOO

